Stump puller



March 4, 1.924.

3 Sheets-Sheet 1 ,G2/Mara,

March 4, 1924.

J. GlLMoRE sTUMP ,FULLER Filed March 2s, 1923 3 SheetsQSheet i `2 re,nvewbo'p March 4 1924. v

J. GILMRE STUMP FULLER Filed March 28,-1923 3 Sheets-Sheet 3 PatentedMar. 4, 1924.

ETE ST JOEL GILMORE, orv HULL, marras.

STUMP" PULLER.

' Application filed. March'ZS, 19213. Serial No. 628,194.

To all 'whom t may concern.'

Be it known that I, JOEL GILMORE, a citizen of the United States,residin at Hull, in the county of Liberty and tate.

of Texas, have invented certainV new and the primary object thereofresiding in lthe.l

provision of such a device wherein the` pull= ing element is operated byhydraulic meansg A further object ofA the invention is theprovision of atree stump puller, wherein the same is readily adaptedtobe transportedfrom place to place, the device'beingfurtherV characterized by itssimplicity of construe-f tion, durability and etliciency of operation,the same embodying relatively few parts,

com arativel s eakinvv andthese sol cor- Y P e1.

related as to reduce 4the liability of derangement to a minimum.

The nature and advantages of the inven. tion will be better understoodwhen the following detailed description is read in cion-Y iiection withthe accompanying drawings, the invention residing in the construction,

combination, and arrangement of parts as at opposite endsjof thecylinders 17 a-re pairs claimed. Y

In the drawings forming part of this ap-` plication, like numerals ofreference indicate .similar parts in the several views, and where-l inFigure 1-is a top plan view of my maf' l 23 is provided with asprocketgear ,24, and

chine.

Figure 2-is a side elevation thereof.

Figure S-is a detailI longitudinal cross sectional view of a portion of'the machine, hereinafter more fully described.

Figure l-ig an enlarged top plan ofthe fluid ejecting motor.

Figure -is across section through one of the cylinders of this motor,and

Figure 6-is a fragmentary enlarged cross Section threugh. the end 0ftheelementshown in Fio'ure 3.

Referring t0 the drawings in detail, 5

designates the frame .ef therriaehne, that is, Subs,fanallyIretargiiler. in shape'geme bodying side bars k6, end bars 7 atransversecross bar 8, adjacent the rear end bar and a longitudinal bar 9, betweenthe end bars and spaced aV distance inwardly from one of thelongitudinal frame bars 6. 10 *designates the steeringl axle, 11 thefront sup-V porting wheels, 12 the rear axle, and 13 the rear supportingwheels. Y ,l

-Suit-ably.supported between the bars 6 and 9 of the said frame' 5 landadjacent the front end of the machine is a combustion engine, designatedin its entirety by the numeral '14. This engine may be of any lnaturedesire ble,-an d I do not wish to be limited. as to a inotor of any`particularv form", vit only being understood that one end of jthe shaft15 thereof extends inwardly of the fra-maand is equipped with a sprocketgear.

Secured upon the said frame bars 6 andV 9, as well as the end frame bar7, and rearwardly of the combustionl engine '14 is an oblong plate 16,upon the top face ,of which are four cylinders 17j. It -is preferablethat these cylinders .be cast with the plate 16, for the purpose ofreducing-the cost of inanufacture.k As clearly .shown in Figures 1 and2, thesecylinders are arranged'in pairs,

the front ends of each pairb'eingjspaced a suitable distance apart.Rectiline'arly mov-` able withineachcylinder is a piston 18,' upon. oneend of a rod 19, the opposite ends of the rods being yoked aty 20, andpivotally secured at 21 to certain endg` of connecting rods 22".

Also castrintegrally `with the plate '16, and

of bearing brackets 22, and journaledV between each pair ofbrackets isal crank shaft 23 to the .crank portions of which -are conf. nected vtheoppositeends of said connectin rods 22. The outer end' of each crankshat 17 are provided .with inlet nipples 29, which haveY communicationthrough thev .instru- Il ieiitaglityl of aT single'. platei l connection30', with the Vsaid pipe 28jA rlghe said cylinders 17 are furtherprovided with outlet nipples 31,- the cylinders of each pair havingcoin-A munication with the pipe 28,v through pipes;

82. The pipe 28 between the inlet and outletconnections of the Saidcylinders, 17 is equipped with a control valve 33, this pipe beingfurther provided at a point adjacent the tanlr 27 with a cut o valve 34.n

Secured in any manner desirable between the frame bars 7 and 8 of themachine frame is a relatively elongated open ended cylinder 35. The rearend of the cylinder projects beyond the frame bar 7, and screw threadedat 36, the same having screw threadedly disposed upon this end a hollowhead 37 the front end of which is soiid and pointed at 38. Slidablewithin the cylinder is a relatively elongated plunger 39, the rear endof the same being equippecL with a desirable number of piston rings 40.The plunger 39 is preferably hollow as more clearly shown in Figure 6,and formed upon the projecting end of this plunger is a pin 4l, whichhas secured thereon a cross arm 42. Upon the cylinder 35, and atopposite sides thereof are laterally extending ears 43, andinterconnected between these ears and adjacent the opposite ends of thesaid cross arm 42 are springs 44, the purpose of the same being tonormally maintain the plunger 39 rearwardly within the cylinder 35.

The said p-ipe 28 from the fluid tank 27 has connection at 45 with thesaid hollow head 37 upon the end of the cylinder, it being of courseunderstood that when my device is in use, the machine iis adapted to bebacked up for permitting the said pointed end of this head to engage thebase of a tree A. When it is desired to employ device for puiling treestumps, the machine as aforesaid is backed up to a tree A, that is insomewhat close proximity to the stump B to be pulled. After the machinehas been moved to the position of Figures 1 and 2, there is positionedaround the tree A., a pair of cables 46 which carry pulleys 47. Securedto the extreme ends of the said cross arm 42 upon the end of the plunger39 are the ends of a cable 48, these ends of the cable having beenpreviously passed over the said pulleys 47 Loose upon this cable is apulley 49, which carries a hook 50, adapted for receiving one end of acable 51, which has been engaged around and secured to the said treestump B. The valve 34 in the pipe line 38 is now open, while the valve33 is closed. The engine 14 is started for effectively controlling theoperation of the pistons within the cylinders, for withdrawing the iiuidfrom the tank 27, and consequently discharging the same to the pipes 32again into the pipe 28, and consequently into the cylinder 35, forforcing the plunger 39 forwardly therein, for reducing the length of thecable 48, which will effect a pull upon the cable 5l and consequentlywithdraw the stump from the ground. As the plunger 39 moves outwardly,the springs 44 are expanded, and after the tree stump has been pulled,the motor is stopped, the

valve 33 opened, whereby through the force of the springs 44, theplunger moves backwardly within the cylinder, for returning the fluid tothe tank 27.

In view of the above description, it is believed by me that it will atonce be apparent to those skilied in the art, that I have provided ahighly improved form of stump pullinflf machine, and one that isabsolutely positive in its operation, and although I have herein shownand described my machine as embodying certain detail structuralelements, it is nevertheless to be understood that the same may bechanged from time to time, without departing from' the spirit and scopeof the invention as claimed.

Having thus described my invention, what I claim as new, and desire tosecure by Letters-Patent is:

l. In a machine of the class described, a frame, a cylinder disposedupon said frame, a plunger movable Within the cylinder, a pointed headupon one end of said cylinder and adapted for engagement with the treeadjacent the stump to be pulled, a source of fluid supply, means forforcing said fluid into said cylinder for ocoasioning the outwardmovement of the plunger therein, a cable connected at its ends to theend of said plunger and engaging over pulleys upon said tree, and aconnection between the cable and the stump to be pulled. Y

2. In a machine of the class described, a frame, a cylinder disposedupon said frame, a plunger movable within the cylinder, a pointed headupon one end of said cylinder and adapted for engagement with the treeadjacent the stump to be pulled, a source of fluid supply, means forforcing said fluid into said cylinder for occasioning the outwardmovement of the plunger therein, a cable connected at its ends to theend of said plunger and engaging over pulleys upon said tree, aconnection between the cable and the stump to be pulled, said connectioncomprising a pulley loosely carried by said cable, and a cablesurrounding the said stump and connected to said pulley.

3. In a machine of the class described, a frame, a cylinder mounted uponsaid frame and adapted for engagement at one end with a tree adjacentthe stump to be pulled, a plunger movable within said cylinder, cableconnections between one end of the plunger, the said tree and the stumpto be pulled, and hydraulic means for forcing said plunger outwardly ofsaid cylinder.

4. In a machine of the class described, a frame, a cylinder mounted uponsaid frame and adapted for engagement at one end with a tree adjacentthe stump to be pulled, a plunger movable within said cylinder, cableconnections between one end of the plunger, the said tree and the stumpto be pulled, and

hydraulic means for forcing said plunger outwardly of said cylinder, andautomatic means for returning the plunger within the cylinder.

5. In a machine of the class described, a frame, a cylinder mounted uponsaid frame and adapted for contact at one end with a tree adjacent thestump to be pulled, a plunger movable within said cylinder, a source offluid supply, means for forcing said fluid into said cylinder, fordischarging the plunger therefrom, means for returning said plunger intothe cylinder when said other means is cut off for returning the fluid toits source, and cable connections between the plunger, the said tree andthe stump to be pulled.

6. In a machine of the class described, a frame, a cylinder mounted uponsaid frame and adapted for Contact at one end with a tree adjacent thestump to be pulled, a plunger movable Within said cylinder, a source ofiiuid supply, means for forcing said fluid into said cylinder, fordischarging the plunger therefrom, means for returning said plunger intothe cylinder when said other means is cut off for returning the fluid toits source, cable connections between the plunger, the said tree and thestump to be pulled, said cable connections including a cable securedat-its opposite ends to one end of said plunger, pulleys upon the treearound which are engaged said cable, a cable arranged around the stumpand a pulley connection between the two cables.

In testimony whereof I aX my signature.

J OEL GILMORE.

